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Marquise|Natural|GIA

1.21ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6551452417

Certificate GIA 6551452417

Diamond specifications and retailer prices

From $4,685 CAD
$3,353 USD
As of November 2, 2026
5 retailers carry this diamond
Most expensive: $5,979 CAD at Wholesale Diamonds Direct · As of October 12, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551452417. Listed at 5 retailers as of November 2, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.41°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 6551452417
Dimensions10.69 × 5.65 × 3.49 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.69 mm5.65 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551452417
Side View
Table 60.0%Crown 38.41°Girdle: MED-THKPavilion 40.27°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $2,926 CAD|Low: $2,924 CAD|High: $6,369 CAD|Avg: $4,517 CAD|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
October 13, 2026
Retailer 2$2,924 CAD
Retailer 1$2,926 CAD
Retailer 5$3,612 CAD
Retailer 3$3,646 CAD
Retailer 7$4,003 CAD
Retailer 6$4,462 CAD
Retailer 10$4,685 CAD
Retailer 4$4,720 CAD
Retailer 9$5,707 CAD
Retailer 8$5,745 CAD
Wholesale Diamonds Direct$5,979 CAD

17 data points across 11 retailers

5 retailers

Retailer 1
-
$3,612 CAD
$2,585 USD
Price last confirmed 18 days ago
Retailer 2
-
$3,646 CAD
$2,609 USD
View
Price last confirmed 19 days ago
Retailer 3
-
$4,003 CAD
SGD 3,871 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
$4,685 CAD
$3,353 USD
View
Most Expensive
Wholesale Diamonds Direct
262935531 · Oct 12
$5,979 CAD
$4,278 USD
View
Price last confirmed 20 days ago
4 more retailers have this diamond
Prices start from $4,685 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.21ct Marquise
$4,685 CAD